Finding the Third Proportional to 128,278.69 and 273,165.75
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Solution
The third proportional to 128,278.69 and 273,165.75 is: 581,698.55
Step by Step Solution
- Step 1: Write the proportion equation
128,278.69 : 273,165.75 = 273,165.75 : x - Step 2: Convert to fraction form
128,278.69/273,165.75 = 273,165.75/x - Step 3: Cross multiply
128,278.69x = 273,165.75 × 273,165.75 - Step 4: Simplify right side
128,278.69x = 74,619,526,973.06 - Step 5: Solve for x
x = 74,619,526,973.06/128,278.69 - Step 6: Final answer
x = 581,698.55
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These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.